Twin-screw extruder for producing PC-ABS (polycarbonate-acrylonitrile-butadiene-styrene) alloy

The utility model discloses a double-screw extruder for PC-ABS (polycarbonate-acrylonitrile-butadiene-styrene) alloy production. The double-screw extruder comprises an extruder body, a pre-crushing assembly and a driving assembly, a first extrusion shaft and a second extrusion shaft are rotationally installed on the side faces of the extruder body respectively, a third gear is installed on the first extrusion shaft, a fourth gear is installed on the second extrusion shaft, the third gear and the fourth gear are connected in a meshed mode, and spiral shafts are installed on the first extrusion shaft and the second extrusion shaft respectively. According to the double-screw extruder for PC-ABS alloy production, PC-ABS alloy raw materials are put into the feeding funnel, the raw materials can be extruded under the action of the screw blades, in the raw material extrusion process, the feeding funnel can be opened to complete conveying of the raw materials, the raw materials can be pre-crushed, in addition, when p